Detail Mode

Structural Design User Guide

Stairs, Ladders and Handrails : Rung Ladder : Detail Mode

Detail mode is intended for use by structural designers to fully define the rung ladder, by selecting a default, an assembly and the specification references of the ladder components.

A rung ladder element created in Layout can be modified to a detailed representation without deleting and re-creating the element.

General Attributes

The functionality available for the General Attributes part of the Create Rung Ladder window, in Detail mode, is identical to that described in Layout mode. Refer to General Attributes for more information.

Position and Elevation

The functionality available for the Position and Elevation part of the Create Rung Ladder window, in Detail mode, is identical to that described in Layout mode. Refer to Position and Elevation for more information.

Ladder Assembly

The Ladder Assembly part of the Create Rung Ladder window is automatically populated with all of the available assemblies for selection that contain the selected exit type. A 3D graphical representation of the assembly also displays.

Click Next to display the Specifications part of the Create Rung Ladder window. Refer to Specifications for further information.

Click Back to return to the Position and Elevation part of the Create Rung Ladder window.

Click Cancel to discard any inputs and close the Create Rung Ladder window.

Specifications

The Specifications part of the Create Rung Ladder window displays all the available specifications for the rung ladder from the defaults.

The choices made on previous parts of the Create Rung Ladder determines which specifications are available for selection.

From the Ladder Specifications part of the Create Rung Ladder window:


Rung	The selected defaults determines which rungs can be used for different width ranges. Once you have selected the width of the ladder, the rungs available for selection are then filtered.
Stile	The selected defaults determines which stiles can be used for different height ranges. Once you have selected the top and bottom elevations and the height of ladder has been calculated, the stiles available for selection are then filtered.

From the Cage Specifications part of the Create Rung Ladder window:


Hoop	The hoop specifications available for selection are determined by the selected defaults.
Bar	The bar specifications available for selection are determined by the selected defaults.

The gate specifications available for selection from the Gate drop-down list are determined by the default specification. The default is None.

Click Next to display the Ladder Details part of the Create Rung Ladder window. Refer to Ladder Details for further information.

Click Back to return to the Ladder Assembly part of the Create Rung Ladder window.

Click Cancel to discard any inputs and close the Create Rung Ladder window.

Ladder Details

The Ladder Details part of the Create Rung Ladder window is populated with the selected and calculated values, most of these values are constrained by the specifications. Any of the ladder dimensions can be modified as long as the dimensions remain within the maximum and minimum tolerances of the associated standard.

If you input a dimension which is not within the maximum and minimum tolerances of the associated standard, an error message displays summarising the problem.

Any of the dimensions in the Create Rung Ladder window can be labelled in the 3D view. To label the dimension, click Dimension adjacent to dimension field.

Ladder Details

The Ladder Details part of the Create Rung Ladder window is populated with the selected and calculated values, most of these values are constrained by the specifications.

The SLH application endeavours to calculate the initial rung spacing to be as close to the associated standard and therefore makes the bottom rung spacing equal to the rung spacing.

If required you can modify the rung spacing and as a result the bottom rung spacing. From the Ladder Details part of the Create Rung Ladder window, input the new rung spacing into the Rung Spacing field, then press Enter.

To return the rung and bottom rung spacing back to that of equal spacing, click the = icon.

Stile/Cage Exit Width

The Cage Details part of the Create Rung Ladder window only displays if the Omit Cage or Omit Top Rung check box on the General Attributes part of the Create Rung Ladder window is not selected.

The Cage Details part of the Create Rung Ladder window is populated with the selected and calculated values, most of these values are constrained by the specifications.

Other cage details are inactive dependent on the selections made:

Flare Offset - only available if an assembly with a cage flare has been selected.

Cage Clearance (Side Exit) - only available for side ladders.

The SLH application endeavours to calculate the initial cage hoop spacing to be as close to the associated standard and therefore makes the top hoop spacing equal to the cage hoop spacing.

If required, you can modify the cage hoop spacing. From the Ladder Details part of the Create Rung Ladder window, input the new spacing into the Cage Hoop Spacing field, then press Enter.

To return the cage hoop and top hoop spacing back to that of equal spacing, click the = icon.

Click Build Rung Ladder to create the rung ladder element and close the Create Rung Ladder window.

Click Back to return to the Specifications part of the Create Rung Ladder window.

Click Cancel to discard any inputs and close the Create Rung Ladder window.

Rung Ladder Summary

The Rung Ladder Summary part of the Create Rung Ladder window, is populated with the main attributes of the rung ladder.